/* 应用于嵌套元素的规则 */
.fade-enter-active ,
.fade-leave-active  {
  transition: all 1.5s ease-in-out;
}

.fade-enter-from ,
.fade-leave-to {
  transform: translateX(50px);
  opacity: 0;
}

.delay1 {
    transition-delay: 0.25s;
}

.delay2 {
    transition-delay: 0.5s;
}

.delay3 {
    transition-delay: 1s;
}